MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ded87d5d072fec89996dc307c5d8561ec2e86874db3f8edd49c13c84bc74decc. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 10


Intelligence 10 IOCs YARA 14 File information Comments

SHA256 hash: ded87d5d072fec89996dc307c5d8561ec2e86874db3f8edd49c13c84bc74decc
SHA3-384 hash: f829d8506c3bbda7ecc772d0c1748f93e23f3c3fdb5f2a59a2fed6880ac711288cf3099a06bee1603f2a2029c6742259
SHA1 hash: 1820ffd16d167f44102053cdc9e3d3441b10d9ef
MD5 hash: dcfa2cc5cdbbe0980658219c7dcc22de
humanhash: johnny-ink-maine-vegan
File name:stealerium.exe
Download: download sample
Signature Formbook
File size:1'301'504 bytes
First seen:2022-05-04 15:49:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'652 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 24576:Qli2Q9NXw2/wPOjdGxYjfw+Jwz/S/6RZs8nVW6k5JHkAUW:QMTq24GjdGSbw+W7SCRnVQTEH
Threatray 8'003 similar samples on MalwareBazaar
TLSH T11255239433E50D00E7BF7FB8D8F10019AB72F5179851E64E2886315D0F3678AAD62B6B
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
258
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
build.exe
Verdict:
Malicious activity
Analysis date:
2022-05-04 15:07:22 UTC
Tags:
evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Searching for the window
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Сreating synchronization primitives
Enabling the 'hidden' option for analyzed file
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Creating a file
Reading critical registry keys
Running batch commands
Creating a window
Launching the process to change network settings
Stealing user critical data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm cmd.exe findstr.exe obfuscated packed stealer
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AveMaria
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Capture Wi-Fi password
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Uses netsh to modify the Windows network and firewall settings
Yara detected AveMaria stealer
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 620409 Sample: stealerium.exe Startdate: 04/05/2022 Architecture: WINDOWS Score: 100 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 Sigma detected: Capture Wi-Fi password 2->49 51 7 other signatures 2->51 7 stealerium.exe 15 77 2->7         started        11 msiexec.exe 2->11         started        process3 dnsIp4 39 ip-api.com 208.95.112.1, 49759, 80 TUT-ASUS United States 7->39 41 icanhazip.com 104.18.115.97, 49762, 80 CLOUDFLARENETUS United States 7->41 43 2 other IPs or domains 7->43 53 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->53 55 May check the online IP address of the machine 7->55 57 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 7->57 59 3 other signatures 7->59 13 cmd.exe 1 7->13         started        16 WerFault.exe 23 9 7->16         started        19 cmd.exe 1 7->19         started        21 WerFault.exe 7->21         started        signatures5 process6 file7 61 Uses netsh to modify the Windows network and firewall settings 13->61 63 Tries to harvest and steal WLAN passwords 13->63 23 netsh.exe 3 13->23         started        25 conhost.exe 13->25         started        27 findstr.exe 1 13->27         started        29 chcp.com 1 13->29         started        37 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 16->37 dropped 31 netsh.exe 3 19->31         started        33 conhost.exe 19->33         started        35 chcp.com 1 19->35         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-05-04 15:47:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
19 of 41 (46.34%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
collection spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Accesses Microsoft Outlook profiles
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Looks up geolocation information via web service
Checks computer location settings
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
ded87d5d072fec89996dc307c5d8561ec2e86874db3f8edd49c13c84bc74decc
MD5 hash:
dcfa2cc5cdbbe0980658219c7dcc22de
SHA1 hash:
1820ffd16d167f44102053cdc9e3d3441b10d9ef
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:grakate_stealer_nov_2021
Rule name:INDICATOR_EXE_Packed_Fody
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:INDICATOR_SUSPICIOUS_EXE_CC_Regex
Author:ditekSHen
Description:Detects executables referencing credit card regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_Discord_Regex
Author:ditekSHen
Description:Detects executables referencing Discord tokens regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_VPN
Author:ditekSHen
Description:Detects executables referencing many VPN software clients. Observed in infosteslers
Rule name:INDICATOR_SUSPICIOUS_EXE_WirelessNetReccon
Author:ditekSHen
Description:Detects executables with interest in wireless interface using netsh
Rule name:MALWARE_Win_UnamedStealer
Author:ditekSHen
Description:Detects unknown infostealer. Observed as 2nd stage and injects into .NET AppLaunch.exe
Rule name:MAL_Lokibot_Stealer
Description:Detects Lokibot Stealer Variants
Rule name:pe_imphash
Rule name:Redline_Stealer_Monitor
Description:Detects RedLine Stealer Variants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other

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